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Brendan Hack 01b9abd771 avfilter/vf_frei0r: set align to 1 for frei0r frames 
The frei0r API requires linesize to be width * 4.
Since the align property of ff_default_get_video_buffer2
specifies line alignment, not buffer alignment, the
previous value of 16 breaks this requirement for frames
whose width is a multiple of 8, but not a multiple of 16
as it adds extra padding to ensure line aligment.

Fix Trac ticket #9873
2022-10-29 17:11:14 +02:00
compat compat/cuda: switch from powf to __powf intrinsic 2022-09-03 20:27:34 +02:00
doc doc/protocols: update rtsp options 2022-10-29 12:26:42 +08:00
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fftools fftools/ffmpeg_demux: stop modifying OptionsContext 2022-10-25 11:13:03 +02:00
libavcodec avcodec/mpegvideo: Remove incorrect comment 2022-10-29 13:37:41 +02:00
libavdevice avdevice/avdevice: Fix mismatching argument name 2022-10-17 09:51:47 +02:00
libavfilter avfilter/vf_frei0r: set align to 1 for frei0r frames 2022-10-29 17:11:14 +02:00
libavformat avformat/argo_cvg: Mark overrides as const 2022-10-28 09:08:00 +02:00
libavutil avutil/tx_template: Move function pointers to const memory 2022-10-28 09:30:10 +02:00
libpostproc configure: always enable gnu_windres if available 2022-08-13 14:42:36 +02:00
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README.md
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README.md

FFmpeg README

FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

  • libavcodec provides implementation of a wider range of codecs.
  • libavformat implements streaming protocols, container formats and basic I/O access.
  • libavutil includes hashers, decompressors and miscellaneous utility functions.
  • libavfilter provides means to alter decoded audio and video through a directed graph of connected filters.
  • libavdevice provides an abstraction to access capture and playback devices.
  • libswresample implements audio mixing and resampling routines.
  • libswscale implements color conversion and scaling routines.

Tools

  • ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
  • ffplay is a minimalistic multimedia player.
  • ffprobe is a simple analysis tool to inspect multimedia content.
  • Additional small tools such as aviocat, ismindex and qt-faststart.

Documentation

The offline documentation is available in the doc/ directory.

The online documentation is available in the main website and in the wiki.

Examples

Coding examples are available in the doc/examples directory.

License

FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.

Contributing

Patches should be submitted to the ffmpeg-devel mailing list using git format-patch or git send-email. Github pull requests should be avoided because they are not part of our review process and will be ignored.